Dell EMC VxRail E Series Owner's Manual - Page 18

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Figure 9. AC PSU status indicator

1. AC PSU status indicator/handle

Table 16. AC PSU status indicators

Convention

Overview

Power indicator

pattern

Green

Flashing green

Flashing green and turns

off

Flashing amber

Not lit

Condition

A valid power source is connected to the PSU and the PSU is operational.

When the firmware of the PSU is being updated, the PSU handle flashes

green.

When hot-adding a PSU, the PSU handle flashes green five times at 4

Hz rate and turns off. This indicates a PSU mismatch with respect to

efficiency, feature set, health status, and supported voltage.

NOTE:

Ensure that both the PSUs are of the same capacity.

CAUTION:

For AC PSUs, use only PSUs with the Extended Power

Performance (EPP) label on the back.

Indicates a problem with the PSU.

CAUTION:

When correcting a PSU mismatch, replace only the

PSU with the flashing indicator. Swapping the PSU to make a

matched pair can result in an error condition and unexpected

appliance shutdown. To change from a high output configuration

to a low output configuration or vice versa, you must turn off the

appliance.

CAUTION:

AC PSUs support both 220 V and 110 V input voltages.

When two identical PSUs receive different input voltages, they

can output different wattages, and trigger a mismatch.

CAUTION:

If two PSUs are used, they must be of the same type

and have the same maximum output power.

CAUTION:

Combining AC and DC PSUs is not supported and

triggers a mismatch.

Power is not connected.